A selective plugging agent was prepared from polyhydroxy - compound as gelling material and cross -linking agent BF.
用多羟基化合物作成胶剂与交联剂BF配制了选择性堵水剂。
A new kind of oil soluble polymer JHXD as selective water shutoff agent was prepared based on the requirement of selective plugging in water injected oilfields.
针对注水开发油田选择性堵水的急需，研制了一类新型油溶性聚合物选堵剂JHXD。
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